vulkan,lavapipe: Simplify command recording code-gen

The Entrypoint class already has utilities for gettingt he parameter
list as either declarations or as comma-separated argument names for a
call.  Use that instead of hand-rolling it.  The only modification we
need to make is to add the ability to start the list somewhere other
than at the beginning.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14919>

src/vulkan/util/vk_commands_gen.py

@@ -68,20 +68,16 @@ TEMPLATE_C = Template(COPYRIGHT + """
 % if c.guard is not None:
 #ifdef ${c.guard}
 % endif
-VKAPI_ATTR ${c.return_type} VKAPI_CALL lvp_${c.name} (VkCommandBuffer commandBuffer
+VKAPI_ATTR ${c.return_type} VKAPI_CALL lvp_${c.name}(${c.decl_params()})
-% for p in c.params[1:]:
-, ${p.decl}
-% endfor
-)
 {
    LVP_FROM_HANDLE(lvp_cmd_buffer, cmd_buffer, commandBuffer);
 
-   vk_enqueue_${to_underscore(c.name)}(&cmd_buffer->queue
+% if len(c.params) == 1:
-% for p in c.params[1:]:
+   vk_enqueue_${to_underscore(c.name)}(&cmd_buffer->queue);
-, ${p.name}
+% else:
-% endfor
+   vk_enqueue_${to_underscore(c.name)}(&cmd_buffer->queue,
-   );
+                                       ${c.call_params(start=1)});
-
+% endif
 % if c.return_type == 'VkResult':
    return VK_SUCCESS;
 % endif

src/vulkan/util/vk_entrypoints.py

@@ -59,11 +59,11 @@ class Entrypoint(EntrypointBase):
     def is_device_entrypoint(self):
         return self.params[0].type in ('VkDevice', 'VkCommandBuffer', 'VkQueue')
 
-    def decl_params(self):
+    def decl_params(self, start=0):
-        return ', '.join(p.decl for p in self.params)
+        return ', '.join(p.decl for p in self.params[start:])
 
-    def call_params(self):
+    def call_params(self, start=0):
-        return ', '.join(p.name for p in self.params)
+        return ', '.join(p.name for p in self.params[start:])
 
 class EntrypointAlias(EntrypointBase):
     def __init__(self, name, entrypoint):